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US2672402A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of producing carbon black and synthesis gas

Assignee: Godfrey L Cabot Inc
•
Filing: 1951-05-23
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Granted: 1954-03-16
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Expires: 1971-05-23
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Abstract

No abstract record available.

Inventors

  • 👤 Charles A Stokes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 19:35
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C09C1/487

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 124 words
A CONTINUOUS PROCESS OF PRODUCING CARBON BLACK AND SYNTHESIS GAS FOR LIQUID FUEL, WHICH IS CHARACTERIZED BY THE STEPS OF CONTINUOUSLY DELIVERING TO AN UNOBSTRUCTED COMBUSTION SPACE CONTIGUOUS STREAMS OF (1) A GASEOUS MEDIUM CONTAINING A HYDROCARBON OIL, (2) NITROGEN-FREE RECYCLE GAS, AND (3) SUBSTANTIALLY PURE OXYGEN, AND MAINTAINING REACTION TEMPERATURE BY PARTIAL COMBUSTION OF THE OXYGEN WITH THE RECYCLE GAS AND THE HYDROCARBON OIL CONTAINED IN THE SAID GASEOUS MEDIUM THEREBY PRODUCING CARBON BLACK AND TAIL GAS CONSISTING ESSENTIALLY OF HYDROGEN, CARBON MONOXIDE, AND CARBON DIOXIDE, SEPARATING THE CARBON BLACK FROM THE TAIL GAS, RECYCLING A PORTION OF THE TAIL GAS TO THE COMBUSTION SPACE, SEPARATING THE CARBON DIOXIDE FROM THE REMAINDER OF THE TAIL GAS AND RECOVERING THE SYNTHESIS GAS THEREBY PRODUCED.

References Cited (Backward Citations)

US1954991A Cited
USRE22886E Cited
US1448655A Cited
US1741532A Cited
US1765991A Cited
US1902797A Cited
US1887407A Cited
US2124175A Cited
US2556196A Cited
US2564736A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-03-15 1957-09-14 1958-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-03-15 1961-09-14 1962-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-03-15 1965-09-14 1966-03-16 $7700.00 Window Closed / Lapsed

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